/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.alluringdecors.controller.validation;

import com.alluringdecors.ejb.dao.UserDAO;
import com.google.gson.Gson;
//import com.google.gson.Gson;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Administrator
 */
public class RegisterValidate extends HttpServlet
{
    @EJB
    private UserDAO userBean;
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException
    {
	response.setContentType("text/html;charset=UTF-8");
	PrintWriter out = response.getWriter();
	try
	{
	    String username = request.getParameter("username");
	    boolean result = userBean.checAlreadyExistUser(username);
	    out.write(new Gson().toJson(result));
	}
	catch(Exception ex)
	{
	    out.print(ex.getLocalizedMessage());
	}
	finally
	{
	    out.close();
	}
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException
    {
	processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException
    {
	processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo()
    {
	return "Short description";
    }// </editor-fold>
}
